CN106225483A - A kind of Flash Smelting Furnace open hearth top hot excavation filling mend method - Google Patents
A kind of Flash Smelting Furnace open hearth top hot excavation filling mend method Download PDFInfo
- Publication number
- CN106225483A CN106225483A CN201610577709.7A CN201610577709A CN106225483A CN 106225483 A CN106225483 A CN 106225483A CN 201610577709 A CN201610577709 A CN 201610577709A CN 106225483 A CN106225483 A CN 106225483A
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- China
- Prior art keywords
- brick
- box
- smelting furnace
- flash smelting
- brick box
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1621—Making linings by using shaped elements, e.g. bricks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D2001/1605—Repairing linings
- F27D2001/161—Hot repair
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The present invention proposes a kind of Flash Smelting Furnace open hearth top hot excavation filling mend method, by the method using preprepared hanger brick box to repair flash furnace roof replace traditional use formwork after carry out pouring into a mould or lay bricks by the way of reparation again.The process time is foreshortened to 6 8h by 40h, service life after reparation can extend to more than 12 months, the use cycle than 15 30 days of original castable refractory at least extends more than 10 times, simultaneously, the construction method of mending by replacing a damaged part using the present invention repairs Flash Smelting Furnace open hearth top, can complete, it is not necessary to lower the temperature burner hearth under hot, time is short, reproduces process simple.Additionally, the making of brick box and building by laying bricks or stones of refractory brick are all previously-completed in the place away from high temperature, save the engineering time, the safest.
Description
Technical field
The invention belongs to smelting field of nonferrous metal, relate to a kind of Flash Smelting Furnace open hearth top hot excavation filling mend method.
Background technology
Flash Smelting Furnace is to make full use of the active surface that fine grinding material is huge, the smelting process of strengthening smelting course of reaction.Will
Metal sulfide concentrate fine powder and flux drying spray in red-hot flash burner hearth together with air, formed good heat transfer,
Mass transfer condition, makes chemical reaction carry out with high speed.May be used for the matte smelting of the sulphide ore such as copper, nickel and make copper and blow
Refining.The structure of flash furnace reaction tower and sedimentation tank open hearth top commonly used hanging magnesium chromium refractory brick, owing to this structure is the most sudden and the most violent
Dew in high temperature environments, directly withstands up to the washing away of sulfur dioxide flue gas of more than 1350 DEG C, corrodes.Therefore Flash Smelting Furnace is being given birth to
During product, top hanging brick is the most thinning to come off, and causes furnace roof to alter fire, produces and interrupt.
Flash Smelting Furnace furnace roof traditional treatment method has two kinds at present, and one is furnace roof to be altered fire position processed by brickwork joint neat, edge
Original hanger brick lower height position is welded template, builds new hanger brick by laying bricks or stones, then hanger brick rustless steel is hung brick in template
Hook block hangs over furnace roof and hangs on brick frame.Two is to be welded template along original hanger brick lower height position, uses unsetting in template
Refractory material casting is repaired.Both approaches is required for being welded template, during negative pressure in stove and temperature must be down to
The lowest, process the time long, work under bad environment, Flash Smelting Furnace is produced and makes a big impact.
Summary of the invention
In order to solve above-mentioned deficiency of the prior art, it is an object of the invention to hot the mending by replacing a damaged part in a kind of Flash Smelting Furnace open hearth top and repair
Compound recipe method.
For achieving the above object, the technical solution adopted in the present invention is: the hot excavation filling mend in a kind of Flash Smelting Furnace open hearth top
Method, comprises the following steps:
A () measures the furnace roof area needing to repair；
B area that () repairs as required, makes brick box, brick box open topped, the end and sidewall and closes, and side wall upper part reserves brick box
Hanging hole, the brick box degree of depth is not less than the height of furnace roof refractory brick, and the exterior surface area of brick box cross section is relative to face to be repaired
Amass and reduce so that what sidewall was corresponding with this sidewall does not damages the assemblage gap of reserved at least 5mm between furnace roof refractory brick；
C () is laid bricks, build refractory brick, and require to place PVC expansion oplate according to laying fireproof bricks in brick box；
(d) blowing out be below-50pa by hearth vacuum control；
E the damage hanger brick that need to repair position is removed by (), the brick stubble after damaged hanger brick removing of making uniform；
F the brick box puzzling refractory brick is hung in furnace roof by () need to repair position, adjusts position, makes the height of brick in brick box and original stove
Top hanger brick is concordant, and is fixed on pylon by brick box by hanging hole and brick box hanging hook；
G hanger brick in brick box is fixed on pylon by () with brick body hanging hook, brick body suspender member；
H gap asbestos cord between original to brick box and periphery hanger brick is tamped by () after, fill real with magnesium mud；
(i) heat up and resume production.
Described brick box hanging hook processes crotch in the cold state.
Magnesium mud used by described step (h) carries out mix and blend, mixing time five to six points with saturated salt before recording
Clock.
Described brick box hanging hole sets one at each sidewall.
Described brick box is made up of the steel plate of thick 8mm.
The invention has the beneficial effects as follows: replaced by the method using preprepared hanger brick box to repair flash furnace roof
Carrying out, after traditional employing formwork, the mode repaired of pouring into a mould or lay bricks again, the process time is foreshortened to 6-8h by 40h, after reparation
Service life can extend to more than 12 months, and the use cycle than 15-30 days of original castable refractory at least extends 10
More than Bei, meanwhile, use the construction method of mending by replacing a damaged part of the present invention to repair Flash Smelting Furnace open hearth top, can complete under hot, it is not necessary to
Lowering the temperature burner hearth, the time is short, reproduces process simple.Additionally, the building by laying bricks or stones all on the ground away from high temperature of the making of brick box and refractory brick
Side is previously-completed, and saves the engineering time, the safest.
Accompanying drawing explanation
Fig. 1 is the structural representation on the Flash Smelting Furnace open hearth top that the present invention relates to；
Fig. 2 is the top construction schematic diagram that after prior art uses molding, unshape refractory cast repairing method is formed；
Fig. 3 is to build and hang, after prior art uses molding, the top construction schematic diagram that refractory brick repairing method is formed by laying bricks or stones；
When Fig. 4 is to use the method for the present invention to repair furnace roof, the repairing space formed after removing damaged hanger brick, brick stubble of making uniform shows
It is intended to；
When Fig. 5 is to use the method for the present invention to repair furnace roof, makes and complete the brick box generalized section after hanger brick is built by laying bricks or stones；
Fig. 6 be use the present invention method repair furnace roof time, brick box position and hang on brick frame after schematic diagram；
When Fig. 7 is to use the method for the present invention to repair furnace roof, complete the schematic diagram after the hanging of hanging in brick box；
Wherein: 1-hanger brick, 2-pylon, 3-brick body hanging hook, 4-brick body suspender member, the unsetting castable of 5-, 6-are unsetting
Refractory material casting template suspender member, 7-breakage hanger brick remove after brick stubble, 8-lay bricks template suspender member, 9-lay bricks template,
10-brick box hanging hook, 11-brick box, 12-brick box hang hole, 13-steel plate, 14-unshape refractory cast template, 15-anchoring
Grab.
Detailed description of the invention
Below by embodiment, and combine accompanying drawing technical scheme is further elaborated with.
As shown in Figures 4 to 7, a kind of work progress that the present invention provides is simple, uses time length for Flash Smelting Furnace open hearth
The construction restorative procedure that top hanger brick is mended by replacing a damaged part.Described construction method comprises the following steps:
(1) measure the furnace roof area needing to repair, on length and width direction, reduce 5mm according to the size measured, as reserved
Assemblage gap, the brick box 11 opened wide with bottom steel plate 13 processing and fabricating and side-closed top, and open four on brick box sidewall
Brick box hanging hole 12；
(2) in brick box 11, build hanger brick 1 by laying bricks or stones, and place PVC expansion oplate according to brick body expansion requirements；
(3) blowing out be below-50pa by hearth vacuum control；
(4) the damage hanger brick that need to repair position is removed, the brick stubble 7 after damaged hanger brick removing of making uniform；
(5) brick box 11 jack puzzling brick is hung in furnace roof and need to repair position, adjust position, make in brick box the height of brick with former
There is top hanging brick concordant, and by four brick box hanging holes 12 and brick box hanging hook 10, brick box 11 is fixed on pylon 2；
(6) with brick body hanging hook 3, hanger brick in brick box 11 is fixed on pylon 2；
(7), after being tamped by the gap asbestos cord between original to brick box 11 and periphery hanger brick 1, fill real with magnesium mud；
(8) intensification is resumed production.
In above-mentioned embodiment, for ensureing that the intensity hanging brick hook is not damaged, make during its crotch red the most curved without baking,
And crotch should be processed in the cold state.
In order to ensure that magnesium mud can have enough intensity after Fast Sintering and sintering, it is desirable to saturated halogen before recording
Water is stirred mixing, mixing time five to six minutes to magnesium mud.
Brick box hangs in furnace roof and needs repairing area, positions and hang after being fixed on pylon, must be used by hanger brick in brick box
Hanging hook is fixed on furnace roof and hangs on brick frame, and after preventing brick cassette bottom portion steel plate scaling loss, in brick box, hanger brick comes off.
Claims (5)
1. the hot excavation filling mend in a Flash Smelting Furnace open hearth top method, comprises the following steps:
A () measures the furnace roof area needing to repair；
B area that () repairs as required, makes brick box (11), brick box (11) open topped, the end and sidewall and closes, side wall upper part
Reserved brick box hanging hole (12), brick box (11) degree of depth is not less than the height of furnace roof refractory brick, the outer surface of brick box (11) cross section
Area reduces relative to area to be repaired so that what sidewall was corresponding with this sidewall do not damage between furnace roof refractory brick reserved at least
The assemblage gap of 5mm；
C () is laid bricks, build refractory brick, and require to place PVC expansion oplate according to laying fireproof bricks in brick box (11)；
(d) blowing out be below-50pa by hearth vacuum control；
E the damage hanger brick that need to repair position is removed by (), the brick stubble (7) after damaged hanger brick removing of making uniform；
F the brick box (11) puzzling refractory brick is hung in furnace roof by () need to repair position, adjusts position, makes in brick box the height of brick with former
There is top hanging brick concordant, and by hanging hole and brick box hanging hook (10), brick box (11) is fixed on pylon (2)；
G hanger brick in brick box (11) is fixed on pylon (2) by () with brick body hanging hook (3), brick body suspender member (4)；
H gap asbestos cord between brick box (11) and the original hanger brick of periphery is tamped by () after, fill real with magnesium mud；
(i) heat up and resume production.
Flash Smelting Furnace open hearth top the most according to claim 1 hot excavation filling mend method, is characterized in that: described brick box hanging hook
(10) crotch is processed in the cold state.
Flash Smelting Furnace open hearth top the most according to claim 1 hot excavation filling mend method, is characterized in that: magnesium used by step (h)
Mud carries out mix and blend, mixing time five to six minutes with saturated salt before recording.
Flash Smelting Furnace open hearth top the most according to claim 1 hot excavation filling mend method, is characterized in that: described brick box hanging hole
(12) one is set at each sidewall.
Flash Smelting Furnace open hearth top the most according to claim 1 hot excavation filling mend method, is characterized in that: described brick box (11) by
The steel plate of thick 8mm is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610577709.7A CN106225483B (en) | 2016-07-21 | 2016-07-21 | A kind of hot excavation filling mend method in Flash Smelting Furnace open hearth top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610577709.7A CN106225483B (en) | 2016-07-21 | 2016-07-21 | A kind of hot excavation filling mend method in Flash Smelting Furnace open hearth top |
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| Publication Number | Publication Date |
|---|---|
| CN106225483A true CN106225483A (en) | 2016-12-14 |
| CN106225483B CN106225483B (en) | 2018-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610577709.7A Active CN106225483B (en) | 2016-07-21 | 2016-07-21 | A kind of hot excavation filling mend method in Flash Smelting Furnace open hearth top |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345772A (en) * | 2019-06-06 | 2019-10-18 | 国家电投集团黄河上游水电开发有限责任公司 | A kind of high-temperature flue is quickly met an urgent need method for repairing and mending |
| CN110779335A (en) * | 2019-10-26 | 2020-02-11 | 上海二十冶建设有限公司 | Integrated mounting method for prefabricated furnace top of rotary hearth furnace |
| CN110806106A (en) * | 2019-10-29 | 2020-02-18 | 首钢京唐钢铁联合有限责任公司 | Method and structure for repairing collapse of refractory material at top of heating furnace |
| CN112010652A (en) * | 2020-08-26 | 2020-12-01 | 山东中阳碳素股份有限公司 | Maintenance method for stopping furnace of petroleum coke calcining furnace fire path |
| CN112066735A (en) * | 2020-07-30 | 2020-12-11 | 白银有色集团股份有限公司 | Method for digging and repairing furnace arch of silver molten pool smelting furnace |
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| JP2005132908A (en) * | 2003-10-29 | 2005-05-26 | Mitsubishi Chemicals Corp | Heat insulation unit for hot repair of coke oven |
| WO2006092867A1 (en) * | 2005-02-28 | 2006-09-08 | The Kansai Coke And Chemicals Co., Ltd. | Repair apparatus for coke oven |
| CN101957139A (en) * | 2010-10-18 | 2011-01-26 | 哈尔滨东安汽车动力股份有限公司 | Furnace lining repairing technology |
| JP4659777B2 (en) * | 2007-03-13 | 2011-03-30 | 新日鉄エンジニアリング株式会社 | Construction method using fireproof insulation brick for hearth |
| CN102564135A (en) * | 2012-02-13 | 2012-07-11 | 中国十九冶集团有限公司 | Construction method for patching of refractory materials of furnace top of heating furnace |
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2016
- 2016-07-21 CN CN201610577709.7A patent/CN106225483B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005132908A (en) * | 2003-10-29 | 2005-05-26 | Mitsubishi Chemicals Corp | Heat insulation unit for hot repair of coke oven |
| WO2006092867A1 (en) * | 2005-02-28 | 2006-09-08 | The Kansai Coke And Chemicals Co., Ltd. | Repair apparatus for coke oven |
| JP4659777B2 (en) * | 2007-03-13 | 2011-03-30 | 新日鉄エンジニアリング株式会社 | Construction method using fireproof insulation brick for hearth |
| CN101957139A (en) * | 2010-10-18 | 2011-01-26 | 哈尔滨东安汽车动力股份有限公司 | Furnace lining repairing technology |
| CN102564135A (en) * | 2012-02-13 | 2012-07-11 | 中国十九冶集团有限公司 | Construction method for patching of refractory materials of furnace top of heating furnace |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345772A (en) * | 2019-06-06 | 2019-10-18 | 国家电投集团黄河上游水电开发有限责任公司 | A kind of high-temperature flue is quickly met an urgent need method for repairing and mending |
| CN110779335A (en) * | 2019-10-26 | 2020-02-11 | 上海二十冶建设有限公司 | Integrated mounting method for prefabricated furnace top of rotary hearth furnace |
| CN110806106A (en) * | 2019-10-29 | 2020-02-18 | 首钢京唐钢铁联合有限责任公司 | Method and structure for repairing collapse of refractory material at top of heating furnace |
| CN112066735A (en) * | 2020-07-30 | 2020-12-11 | 白银有色集团股份有限公司 | Method for digging and repairing furnace arch of silver molten pool smelting furnace |
| CN112010652A (en) * | 2020-08-26 | 2020-12-01 | 山东中阳碳素股份有限公司 | Maintenance method for stopping furnace of petroleum coke calcining furnace fire path |
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| Publication number | Publication date |
|---|---|
| CN106225483B (en) | 2018-08-10 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191028 Address after: 538002 Qisha Industrial Zone, Qisha Town, Gangkou District, Fangchenggang City, Guangxi Zhuang Autonomous Region (Jinchuan Industrial Park) Patentee after: GUANGXI JINCHUAN NON-FERROUS METALS CO.,LTD. Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu Patentee before: JINCHUAN GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Hot State Repair Method for Open hearth Top of Flash Furnace Effective date of registration: 20221121 Granted publication date: 20180810 Pledgee: China Construction Bank Corporation Fangchenggang branch Pledgor: GUANGXI JINCHUAN NON-FERROUS METALS CO.,LTD. Registration number: Y2022450000202 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |